Synopsis of the Snakes of the Philippines A Synthesis of Data from Biodiversity Repositories, Field Studies, and the Literature Author Leviton, Alan E. Herpetology Division, Institute of Biodiversity Science & Sustainibility, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, California 94118 & Research Associate, Division of Amphibians & Reptiles, Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, DC, USA. aleviton@calacademy.org Author Siler, Cameron D. Department of Biology and Sam Noble Museum, University of Oklahoma, 2401 Chautauqua Ave., Norman, OK 73072 - 7029, USA & Zoology Division, National Museum of the Philippines, Rizal Park, Burgos Ave., Ermita 1000, Manila, Philippines. camsiler@ou.edu Author Weinell, Jeffrey L. Department of Ecology and Evolutionary Biology and Biodiversity Institute, University of Kansas, Lawrence, Kansas 66045 jweine2@gmail.com Author Brown, Rafe M. Department of Ecology and Evolutionary Biology and Biodiversity Institute, University of Kansas, Lawrence, Kansas 66045 & Zoology Division, National Museum of the Philippines, Rizal Park, Burgos Ave., Ermita 1000, Manila, Philippines. rafe@ku.edu text Proceedings of the California Academy of Sciences 2018 Oxford, England 2018-03-29 64 14 399 568 http://dx.doi.org/10.5281/zenodo.11512589 journal article 299690 10.5281/zenodo.11512589 d7a23684-9222-422b-868a-6c8712a4fd05 0068-547X 11512589 Hydrophis [ Mediohydrophis ] klossi Boulenger, 1912 Kloss’s Sea Snake Hydrophis klossi Boulenger, 1912:190 .— Smith, 1926:68 , fig. 21 .— Stuebing and Inger, 1999:210.— David and Ineich, 1999:112.— Leviton, Brown, and Siler, 2014:507 . Mediohydrophis klossi , Wallach, Williams, and Boundy, 2014:422 . TYPE LOCALITY AND TYPE SPECIMEN ( S ) .— Selangor , Malaysia Peninsula. Holotype : BMNH 1946.1.10.8 (formerly BMNH 1920.6.3.7 ; fide Smith [1926:69] ). PHILIPPINE DISTRIBUTION .— Philippines (not yet reported from Philippine waters; Stuebing and Inger [1999:210] report one specimen off the coast of northern Borneo ). GENERAL DISTRIBUTION ( OTHER THAN PHILIPPINES ) .— east coast of Malay Peninsula, Thailand, Singapore, western Indonesia (Sumatra). REMARKS .— We have tentatively assigned this species to Hydrophis consistent with the treatments of Hydrophis and related nominal genera by Sanders et al. (2013) and Pyron et al. (2013) . CONSERVATION STATUS [IUCN] .— Data Deficient [2016] ver. 3.1.